We've highlighted plenty of Labs features for Gmail, but Calendar has some pretty great Labs offerings, too. Since it's been nearly two years since Labs were added to Calendar, we thought it was about time they got a bit more attention. Here are eight of the most useful experimental features available for Google…

The information you keep in Google apps like Gmail, GCal, Reader, and Voice doesn't just live in one place. Check out a few easy but non-obvious ways to plug different Google apps together and share their data and features.